The R group is what allows amino acids to form macromolecules with different properties. every amino acid has the same basic structure, the only difference is what the R group is made up of. The similarities allow the amino acids to form a chain while the differences allows them to have different functions. Hope this helped!
Yes, DNA synthesis is a part of creating DNA.
They had to change they way they live which is quite difficult it is like you going to a new school in a new state and not being used to anyone
